For aluminium extrusions we define tolerances for dimension, shape and length

We apply to standard tolerances in accordance with EN 755-9 for dimensions, shape and length.

Dimension tolerances include height, width, wall thickness, gap and diameter, ovality and eccentricity Shape tolerances include straightness, distortion, flatness, angle and corner radii. Length tolerances are given for cutting at the press or recutting.

Lower/tighter tolerances than Hydal´s standard tolerances can in certain cases be desirable/possible.


Shape tolerances

Dimension tolerances


Length tolerances

For further information about tolerances contact our Customer Support or read more here!